Copper ions in coffin reveal why Italian 'green mummy' turned emerald, say researchers ByJERUSALEM POST STAFF NOVEMBER 3, 2025 22:35

Copper ions in coffin reveal why Italian 'green mummy' turned emerald, say researchers The teenage boy found in a Bologna villa cellar in 1987 was preserved by copper's antimicrobial action, which halted decay and infused his skin and bones with a vivid green patina. https://www.jpost.com/archaeology/article-872533